2. According to the Paper Aircraft Association, a paper airplane thrown in space will not fly; it will float in a straight line. Unless it hits an object, it could literally float forever (see Resources). Wingspan 3. The record wingspan of a paper airplane is 40 feet and 10 inches. The craft flew over 114 feet before crashing into a wall. Education 4. Scientists, engineers and students use paper airplanes to study aerodynamics.
Any type of trauma or injury to the testicles can cause severe pain and discomfort. The most common mechanism of testicular trauma occurs from blunt trauma (~85%), which can occur from sports injuries, a direct kick to the area, car accidents, and straddle injuries.
Pain in the scrotum or testicles can be due either to problems within the testicle itself or to a problem in another part of the body. Testicular aches and pains are not usually cause for alarm unless the pain is severe and of sudden onset. Then it is a medical emergency. Testicular cancer is usually painless.